SAF is already being blended into jet fuel. The bottleneck is feedstocks. 🌱 Mahesh Roy of the Green Finance Institute breaks down why waste-based supply constraints are the real barrier to scaling sustainable aviation fuel. Watch more from @london_climate on @WeDontHaveTime https://t.co/ALnictDEAd #SustainableAviation #JetFuel #GreenFinance #Nospecificcountrycodeswerementionedinthetweet.